Theoretical understandings, key technologies and practices of tight conglomerate oilfield efficient development: A case study of the Mahu oilfield, Junggar Basin, NW China

LI Guoxin,QIN Jianhua,XIAN Chenggang,FAN Xibin,ZHANG Jing,DING Yi

Table 6 Statistics of production of each well in pilot area in April 2020.

Well number Horizontal segmentlength/m Oil nozzle/ mm Oil pressure/ MPa Daily fluid output/t Daily oil output/t Daily gas output/ m3 Water content/% Gas-oil ratio/ (m3·t-1) Cumulative fluid output/t Cumulative oil output/t Cumulative gas output/ 104 m3 Cumulative equivalent output/t Production time/d Average daily oil output/t Flowback rat/% M1241 1788 5.0 16.5 49.0 31.6 16 885 35.5 534 11 639 6584 224 8367 233 28.3 13.6 M1242 1802 3.5 12.2 27.1 16.8 8 738 38.2 520 9281 4823 145 5975 232 20.8 8.8 M1243 1802 3.5 11.8 28.8 18.5 7 140 35.8 386 8683 3864 127 4873 231 16.7 7.0 M1244 1782 4.0 6.2 35.2 12.1 2 384 65.6 197 12 881 6071 75 6667 229 26.5 12.4 M1245 1765 3.5 7.2 25.3 17.0 2 986 32.8 176 9502 3882 63 4381 233 16.7 14.4 M1246 1802 3.5 17.0 23.7 17.0 19 860 28.4 1 168 7799 4518 355 7344 233 19.4 11.3 M1247 1803 5.0 5.0 13.2 9.8 8 310 26.0 848 7710 5178 312 7667 233 22.2 9.3 M1248 1489 4.0 20.0 27.5 21.6 13 731 21.5 636 10 107 6873 327 9478 231 29.8 13.5 M1249 1702 3.5 15.0 22.6 13.2 16 121 41.6 1 221 7549 4979 290 7290 231 21.6 10.7 M1250 1600 3.5 18.2 24.4 18.6 21 391 23.6 1 150 8239 5755 356 8594 233 24.7 8.1 M1251 1622 3.5 18.0 25.5 20.8 20 101 18.4 966 7673 5228 371 8181 233 22.4 7.4 M1252 1690 5.0 17.2 31.6 22.1 21 755 30.2 984 10 674 6903 381 9941 233 29.6 15.7 Average 1720 4.0 13.7 27.8 18.3 13 284 33.1 732 9311 5388 252 7396 232 23.2 11.0